
<template>
  <view>
    <view class="uni-header">
      <view class="uni-group">
        <view class="uni-title"></view>
        <view class="uni-sub-title"></view>
      </view>
      <view class="uni-group">
        <input class="uni-search" type="text" v-model="query" placeholder="请输入教学班标识" />
        <button class="uni-button" type="default" size="mini" @click="search">搜索</button>
        <button class="uni-button" type="default" size="mini" @click="navigateTo('./add')">新增</button>
        <button class="uni-button" type="default" size="mini" @click="delTable">批量删除</button>
      </view>
    </view>
    <view class="uni-container">
      <uni-clientdb ref="udb" :collection="collectionName" :options="options" :where="where" page-data="replace" field="class_id,number,course{course_id,course_name},username,day,node,address,start_week,end_week,biweekly,parent_id,comment,roomSchedule"
        :orderby="orderby" :getcount="true" :page-size="options.pageSize" :page-current="options.pageCurrent"
        v-slot:default="{data,pagination,loading,error}">
        <uni-table :loading="loading" :emptyText="error.message || '没有更多数据'" border stripe type="selection" @selection-change="selectionChange">
          <uni-tr>  
						<uni-th align="center">课程名称</uni-th> 
						<uni-th align="center">教学班标识</uni-th>  
						<uni-th align="center">教师</uni-th>  
						<uni-th align="center">人数</uni-th> 
						<uni-th align="center">星期</uni-th>  
						<uni-th align="center">节次</uni-th>  
						<uni-th align="center">课室</uni-th>  
						<uni-th align="center">开始周</uni-th>  
						<uni-th align="center">结束周</uni-th>  
						<!-- <uni-th align="center">单双周</uni-th>  
						<uni-th align="center">大课Id</uni-th> --> 
						<!-- <uni-th align="center">备注</uni-th>  -->
            <uni-th width="204" align="center">操作</uni-th>
          </uni-tr>
          <uni-tr v-for="(item,index) in data" :key="index">   
						 <uni-td align="center">{{item.course[0].course_name}}</uni-td>
						 <uni-td align="center">{{item.class_id}}</uni-td>   
						 <uni-td align="center">{{item.username}}</uni-td>
						 <uni-td align="center">{{item.number}}</uni-td> 
						 <uni-td align="center">{{'周'+digital2Chinese(item.day , 'week')}}</uni-td>    
						 <uni-td align="center">{{digital2Chinese(item.node , 'node')}}</uni-td>    
						 <uni-td align="center">{{item.address ? item.address.slice(-1).join('、') : '' }}</uni-td>    
						 <uni-td align="center">{{item.start_week}}</uni-td>    
						 <uni-td align="center">{{item.end_week}}</uni-td>    
						 <!-- <uni-td align="center">{{item.biweekly}}</uni-td>    
						 <uni-td align="center">{{item.parent_id}}</uni-td>  -->  
						 <!-- <uni-td align="center">{{item.comment}}</uni-td>   -->
						 <uni-td align="center">
								<view class="uni-group">
									<button @click="navigateTo('./edit?id='+item._id)" class="uni-button" size="mini" type="primary">修改</button>
									<button @click="confirmDelete(item._id,item.roomSchedule)" class="uni-button" size="mini" type="warn">删除</button>
								</view>
						 </uni-td>
          </uni-tr>
        </uni-table>
        <view class="uni-pagination-box">
          <uni-pagination show-icon :page-size="pagination.size" v-model="pagination.current" :total="pagination.count"
            @change="onPageChanged" />
        </view>
      </uni-clientdb>
    </view>
  </view>
</template>

<script>
  const db = uniCloud.database()
	
	import {mapState} from 'vuex'
  // 表查询配置
  const dbCollectionName = 'teaching-class,hr-course'
  const dbOrderBy = 'day' // 排序字段
  const dbSearchFields = ['class_id,course'] // 支持模糊搜索的字段列表
  // 分页配置
  const pageSize = 20
  const pageCurrent = 1

  export default {
    data() {
      return {
        query: '',
        where: '',
        orderby: dbOrderBy,
        collectionName: dbCollectionName,
        options: {
          pageSize,
          pageCurrent
        }
      }
    },
		created() {
			const { role, _id, username } = this.userInfo
			console.log()
			if(role[0] === "TEACHER"){
				this.where = "/"+username+"/i.test(username)"
			}
		},
		computed: {
			...mapState('user', ['userInfo']),
		},
    methods: {
      getWhere() {
        const query = this.query.trim()
        if (!query) {
          return ''
        }
        const queryRe = new RegExp(query, 'i')
        return dbSearchFields.map(name => queryRe + '.test(' + name + ')').join(' || ')
      },
      search() {
				const { role, _id, username } = this.userInfo
        const newWhere = this.getWhere()
        const isSameWhere = newWhere === this.where
				if(role[0] === "TEACHER"){
					if( newWhere == ''){
						this.where = "/"+username+"/i.test(username)"
					}else{
						this.where = "/"+username+"/i.test(username) &&" + newWhere
					}
				}else{
					this.where = newWhere
				}
				
				console.log(this.where)
        if (isSameWhere) { // 相同条件时，手动强制刷新
          this.loadData()
        }
      },
      loadData(clear = true) {
        this.$refs.udb.loadData({
          clear
        })
      },
      onPageChanged(e) {
        this.$refs.udb.loadData({
          current: e.current
        })
      },
      navigateTo(url) {
        uni.navigateTo({
          url,
          events: {
            refreshData: () => {
              this.loadData()
            }
          }
        })
      },
      // id多选处理
      selectedItems() {
        var dataList = this.$refs.udb.dataList
        return this.selectedIndexs.map(i => dataList[i]._id)
      },
      //批量删除
      delTable() {
        this.$refs.udb.remove(this.selectedItems())
				var dataList = this.$refs.udb.dataList
				this.selectedIndexs.map(i => {
					db.collection("classroomSchedule").doc(dataList[i].roomScheduleId).remove()
				})
      },
      // 多选
      selectionChange(e) {
        this.selectedIndexs = e.detail.index
      },
      confirmDelete(id,roomScheduleId) {
        this.$refs.udb.remove(id)
				db.collection("classroomSchedule").doc(roomScheduleId).remove()
      },
			
			/**
			* 数字转中文
			* @param {Number} num 需要转换的数字
			* @param {Boolean} identifier 标识符
			* @returns {String} 转换后的中文
			*/
			digital2Chinese(num, identifier) {
			    const character = ['零', '一', '二', '三', '四', '五', '六', '七', '八', '九', '十', '十一', '十二'];
					const time = [ '08:00-08:40','09:00-10:20', '10:40-12:00', '12:30-13:50', '14:00-15:20', '15:30-16:50', '17:00-18:20','19:00-20:20','20:30-21:50'];
					if(identifier === 'week'){
						return (num === 0 || num === 7) ? '日' : character[num];
					}
			    if(identifier === 'node'){
						return  time[num]
					}
					return num
			},
    }
  }
</script>
<style>
</style>

